In his major NASCAR career, Miller has competed in the Busch Series thirteen times over two years. His best finish was a 16th at Atlanta in 1996. He also has competed in six Craftsman Truck Series events, all coming in 2003 with a best of 16th at Darlington.

He married Kelley Earnhardt the oldest daughter of NASCAR Champion Dale Earnhardt in January 2011 and together they have a son named Wyatt Wayne Miller born on February 16th 2012. He is also the stepfather of Kelley's 2 daughters Karsyn and Kennedy Elledge from her previous marriage to NASCAR Crew Chief Jimmy Elledge.